Home / 25,163.70-34,726.57-13,679.38

Finding the Fourth Proportional to 25,163.70, 34,726.57 and 13,679.38

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Solution

The fourth proportional to 25,163.70, 34,726.57 and 13,679.38 is: 18,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,163.70 : 34,726.57 = 13,679.38 : x
  2. Step 2: Convert to fraction form
    25,163.70/34,726.57 = 13,679.38/x
  3. Step 3: Cross multiply
    25,163.70x = 34,726.57 × 13,679.38
  4. Step 4: Simplify right side
    25,163.70x = 475,037,826.11
  5. Step 5: Solve for x
    x = 475,037,826.11/25,163.70
  6. Step 6: Final answer
    x = 18,877.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.